Effects of plant hormones on the stomata of barley: A study of the interaction between abscisic acid and kinetin

Abstract
It is known that kinetin and abscisic acid affect stomatal aperture. A statistically significant interaction between kinetin and abscisic acid at concentrations of abscisic acid between 10-5 and 10-6M is demonstrated for barley. It is suggested from this and other work that the results obtained may only be true for graminaceous species and not for other monocotyledons or for dicotyledons.